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Jamie Frye
Mathematics
23 August, 16:48
What is (128 + 7x - 12) = (4x - 3) ?
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Lillie Fitzpatrick
23 August, 16:58
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x = - 119/3 = - 39 2/3
Step-by-step explanation:
(128 + 7x - 12) = (4x - 3)
Combine like terms
(116 + 7x) = (4x - 3)
Subtract 4x from each side
116 + 7x-4x=4x-4x-3
116 + 3x = - 3
Subtract 116 from each side
116-116 + 3x = - 3-116
3x = - 119
Divide each side by 3
3x/3 = - 119/3
x = - 119/3
x = - 39 2/3
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